Power status detecting apparatus

(19)

(11)

EP 0 398 550 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	22.01.1992 Bulletin 1992/04

(43)	Date of publication A2:
	22.11.1990 Bulletin 1990/47

(21)	Application number: 90304781.9

(22)	Date of filing: 02.05.1990

(51)	International Patent Classification (IPC)⁵: H04B 1/20, H04B 1/16, H02J 13/00

(84)	Designated Contracting States:
	DE FR GB

(30)

Priority:

16.05.1989 JP 122449/89
10.07.1989 JP 177042/89

(71)	Applicant: SONY CORPORATION
	Tokyo 141 (JP)

(72)	Inventor:
	Yamamoto, Yasuyuki, c/o Patents Division Shinagawa-ku, Tokyo 141 (JP)

(74)	Representative: Cotter, Ivan John et al
	D. YOUNG & CO. 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)

(56)

References cited: :

(54)	Power status detecting apparatus

(57) A power status detecting apparatus to be applied to a plurality of audio-visual equipments (1 to 5, 7) is arranged such that currents flowing to AC lines (1A to 5A, 7A) of the respective equipments (1 to 5, 7) are detected (11) so as to identify the power condition status of the respective equipments (1 to 5, 7) and in which identified information are supplied to a system control apparatus (12).

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